MOP is a great book, but you need to have prior knowledge. Not about poker but math. The book is easily understandable with very limited poker experience if you have a math background. If you are an experienced “feel” poker player, you might get frustrated with it.
Applications of No Limit Hold’em does a better job of explaining the concepts before applying them and people told me there’s a book by Ed Miller that’s about the same concepts but basically no math at all.